d, Town of Licodia dei Monaci.

e, Marine formation called creta, argillaceous and sandy beds with a few shells, and associated volcanic rocks.

f, Escarpment of stratified subaqueous volcanic tuff, &c., northwest of Catania.

g, Town of Catania.

h i, Dotted line expressing the highest boundary along which the marine strata are occasionally seen.

k, Plain of Catania.

l, Limestone platform of Primosole of the Newer Pliocene period.

m, La Motta di Catania.

The mountain is in general of a very symmetrical form, a flattened cone broken on its eastern side, by a deep valley, called the Val del Bove, or in the provincial dialect of the peasants, "Val di Bué," for here the herdsman

—— "in reducta valle mugientium Prospectat errantes greges."